CVE-2019-6339
In Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; A remote code execution vulnerability exists in PHP's built-in phar stream wrapper when performing file operations on an untrusted phar:// URI.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 35.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
In Drupal Core versions 7.x prior to 7.62, 8.6.x prior to 8.6.6 and 8.5.x prior to 8.5.9; A remote code execution vulnerability exists in PHP's built-in phar stream wrapper when performing file operations on an untrusted phar:// URI. Some Drupal code (core, contrib, and custom) may be performing file operations on insufficiently validated user input, thereby being exposed to this vulnerability. This vulnerability is mitigated by the fact that such code paths typically require access to an administrative permission or an atypical configuration.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 35.58% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- drupal/drupal · debian/debian linux
- Source
- mlhess@drupal.org
EPSS moved from 27.4% on 21 September 2026 to 35.6% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://lists.debian.org/debian-lts-announce/2019/02/msg00004.htmlThird Party Advisory
- https://www.debian.org/security/2019/dsa-4370Third Party Advisory
- https://www.drupal.org/sa-core-2019-002Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00004.htmlThird Party Advisory
- https://www.debian.org/security/2019/dsa-4370Third Party Advisory
- https://www.drupal.org/sa-core-2019-002Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.